The Seat,valve, cataloged under National Stock Number 4820-00-956-9441, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Walworth Company. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-956-9441 |
| Primary Part Number | 54385 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Thread Length | 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Style Designator | THREADED FLANGED |
| Material | NICKEL ALLOY OVERALL |
| Nominal Thread Size | 0.750 INCHES SINGLE THREADED PORTION IN |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Body Inside Diameter | 0.500 INCHES NOMINAL IN |
| Seating Surface Shape | FLAT |
| Under Flange Height | 0.312 INCHES NOMINAL IN |
| Flange Diameter | 0.937 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 0.125 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 24 SINGLE THREADED PORTION |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-956-9441 is a Seat,valve, manufactured by The Walworth Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-956-9441 has 2 cross-referenced part numbers: C38475 (The Walworth Company), 54385 (The Walworth Company).
There are 8 known substitutes for 4820-00-956-9441: 5320-00-014-7712, 5330-00-105-0082, 5940-00-552-4531 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 54385: Thread Length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN; Thread Class: 2A SINGLE THREADED PORTION A; Style Designator: THREADED FLANGED; Material: NICKEL ALLOY OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.